Answer Me This
Up to the 2000 election, the typical electoral map used a color scheme that I remember being used since I was a kid in the early Seventies. Democrats were always red and Republicans were always blue. Why that color scheme came into being I don't know. But the joke was that Democrats were Red Communists and Republicans were "true blue" Americans.
So why, suddenly, in the 2000 presidential election was the scheme reversed? I don't recall any discussion or huge notice paid to it, but suddenly everything Republican was red and Democratic was blue. It's been that way ever since. Even traditionally Republican people and organisations accepted it.